A stator of a twin rotor motor includes: an annular yoke; a plurality of outer teeth and outer slots provided on an outer circumference of the yoke; a plurality of inner teeth and inner slots provided on an inner circumference of the yoke; and a plurality of taroidally-wound coils on the yoke. A rotor of the twin rotor motor includes: an outer rotor provided with an outer permanent magnet facing the outer teeth; and an inner rotor provided with an inner permanent magnet facing the inner teeth. Furthermore, the stator is provided with a resin mold that seals the coils and has a mounting-tab.